<SEC-DOCUMENT>0001104659-21-089934.txt : 20210707
<SEC-HEADER>0001104659-21-089934.hdr.sgml : 20210707
<ACCEPTANCE-DATETIME>20210707214446
ACCESSION NUMBER:		0001104659-21-089934
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210707
FILED AS OF DATE:		20210707
DATE AS OF CHANGE:		20210707

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			THORNTON JOHN L
		CENTRAL INDEX KEY:			0001090353

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40583
		FILM NUMBER:		211078852

	MAIL ADDRESS:	
		STREET 1:		C/O GOLDMAN SACHS GROUP INC
		STREET 2:		85 BROAD STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10004

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AltC Acquisition Corp.
		CENTRAL INDEX KEY:			0001849056
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		640 FIFTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-380-7500

	MAIL ADDRESS:	
		STREET 1:		640 FIFTH AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm2121078-4_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-07-07</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001849056</issuerCik>
        <issuerName>AltC Acquisition Corp.</issuerName>
        <issuerTradingSymbol>ALCC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001090353</rptOwnerCik>
            <rptOwnerName>THORNTON JOHN L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ALTC ACQUISITION CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>640 FIFTH AVENUE, 12TH FL.</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ John L. Thornton</signatureName>
        <signatureDate>2021-07-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
